Correct answer: Re81.Kf5[A]? zz 1...e:d3[a] 2.Re8#[C] but 1...e:f3! 1.Kd5[Б]? zz 1...e:f3/[б]/ 2.Re8#[C] but 1...e:d3! 1.Rf8?? zz 1...e:d3 2.Qe1# but 1...e:f3! 1.Rd8